to spare (?.)

• de trop
• dispensable
• excess
• expendable
• expletive
• extra
• fresh
• gratuitous
• held back
• held in reserve
• held out
• in abeyance
• in excess
• in hand
• left
• leftover
• mint
• needless
• net
• new
• nonessential
• odd
• original
• outstanding
• over
• pleonastic
• pristine
• prolix
• put aside
• put by
• redundant
• remaining
• remanent
• reserve
• saved
• spare
• stored
• supererogatory
• superfluous
• surplus
• surviving
• suspended
• tautologic
• tautologous
• unapplied
• unbeaten
• uncalled-for
• unconsumed
• unemployed
• unessential
• unexercised
• unexpended
• unhandled
• unnecessary
• unneeded
• unspent
• untapped
• untouched
• untrodden
• unused
• unutilized
• verbose
• waived